Railroad-frog



(No Model.) 2 SheetsSheet; 1.

P. 0. WEIR;

' RAILROAD FROG, I No. 331,594. Patented Dec. 1, 1885.

(No Model.) 2 Sheets-Sheet 2 F. 0., WEIR.

' RAILROAD FROG.

No. 331,594. Patented Dec. 1, 1885.

tween the spaces a a.

UNITED STATES PATENT OFFICE.

FREDRIG O. WEIR, OF CINCINNATI, OHIO.

RAILROAD-FROG.

SPECIFICATION forming part of Letters Patent No. 331,594, dated December 1, 1885.

Application filed July 12, 1883. Serial No. 100,575. (No model.)

To all whom it may concern:

Be it known that I, FREDRIO O. WEIR, a citizen of the United States, and a resident of Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in RailroadFi-ogs, of which the following is a specification.

My invention relates to an improvement in railroad-frogs, which will be fully set forth in the description of the accompanying drawings.

Figure 1 represents a plan view of my improved frog; Fig. 2, a section on line m 66, Fig. 1; Fig. 3, a side elevation of the filling-block; Fig. 4., a top plan view of the modified form of filling-blocks. Fig. 5 is an enlarged sectional view of the lower filling-piece with the top plate removed. Fig. 6 is a sectional elevation of the filling-block with the top plate removed. Fig. 7 is a top plan view of the filling-plates; Fig. 8, a plan view of the sectional toe-piece. Fig. 9 represents a side elevation of one of the filling-plates shown in Fig. 7; Fig. 10, a side elevation of the toe-piece shown in Fig. 8. Fig. 11 is a section on line 3 y, Fig. 9 Fig. 12, a section on line 2 2, Fig. 9.

A A represent the wing-rails of an ordinary railroad-frog; B B, the point-rails.

I have found it desirable to make the fillingplates on a railroad-frog of cast metalsuch as steel, cast-iron, and malleable iron-and when so made it is desirable to have the through-bolts occupy a space in the filling-blocks which will allow of the contraction and expansion of the metal without strain upon the tie-bolts, and also to avoid the fitting or boring of the fillingblocks by making the spaces large enough to allow the bolts to pass through the spaces in the filling-blocks. It is also desirable to have the filling-blocks properly fit the webs of the rails which they separate and abut. To accomplish these results, I provide cast filling plates or bars D, which are provided with enlarged spaces a a, and supporting-ledges b be- The sections D occupy the spaces each side of the point-rails, extending from the rear to near the forward point of the same.

E represents a slotted filling-block or toepiece,'which is shown in Figs. 8 and 10. It is provided with tenons d, through which are pierced bolt-holes 0. These tenons d occupy a space, 6, between the top and bottom of the filling-pieces, as shown in Fig. 9.

F represents the top plate of the fillingpiece, which is made to fit the top of the filling-pieces D E, to which it is securely bolted by bolts f, as shown in Fig. 3. This form of construction is adapted specifically to the use of the cast-iron filling-blocks D E and steel filling-plates F, secured thereto, as shown in Figs. 3 and 4.

When it is desired to form the connections D E of cast-steel or malleable iron, the fillingpieces, with their spaces and the top plate covering the bolt-spaces a, are cast in one piece, as shown in Fig. 9, and the filling toepiece E, with its top plate, also cast in one piece with the tenons d, occupying fillingspaces e, and the parts secured by the throughbolts, which bind these filling-pieces to the wing and point rails. By this means of constructing the frog the tie-bolts H will pass through the wing-rail and filling-piece and point-rails readily without any fitting of the filling blocks, and these spaces are large enough to allow of the expansion and contraction of the metal without subjecting the bolt H to any vertical or lateral strain from this or other causes. These parts form a very firm and durable support for the wing and point rails, holding them firmly in lateral position, and also securing them in vertical relation to each other, so that the tread of the point and wing rails always occupies the same horizon tal plane, which is a very important feature in the railroad-frog, as if either the wing or the point rail rises or falls even but a small distance from the plane of the other the carwheels strike the higher rail, which receives the whole thrust at this point, whereas the wing and the point rails should both conjoin to support the tread of the wheel in being guided from the wing to the point rail, or vice versa, until the wheel has reached the place of the point-rail where it has sufficient strength and width of tread to support the entire load.

Having described my invention, what I claim 1s 1. The filling-piece D, for a railroad-frog,having the supporting-ledges b, and a bolt-space,

a, formed by casting a piece integral, in comand secured to the wing and point rails by 10 bination with the filling-plates F, bolted therebolts H, and filling-plates F, bolted thereto,

to, substantially as herein set forth. substantially as herein set forth.

2. The sectional forked filling-piece E, pro- In testimony whereof I have hereunto set vided with tenons d, adapted to fit and be my hand. secured to the section D, substantially as herein FR-EDRIO G. WEIR. set forth. Witnesses: 4

3. In combination with a railway-frog, the J N0. E. JONES, sectional filling blocks D E, each cast integral A. GLUoHoWsKY. 

